What are the series of the function? f(x)=4x^3+8x^2-4x-8 a) -1 and 2 b) -2, 1 and 2 c) -2, -1 and 1 d) -2 and 1

C

Step-by-step explanation:

This question should say "what are the roots or zeros of the function." The zeros or roots of a function are the x-intercepts. We find them by factoring and setting each factor equal to 0.

We can factor by grouping. We group two terms each into parenthesis and find the GCF of each pair. We should find a repeating factor of (x+2). We only keep one of these.

We set each factor equal to 0 and solve for x.

Our zeroes or roots are -2. -1. and 1. Answer C.

step-by-step explanation:

(s)he  is right it would be 5.5% because it is smaller than 15.5% or anything smaller than 15.5% in general

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is